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        <p>摘自微信公众号<code>HACK学习呀</code>的<a href="https://mp.weixin.qq.com/s?__biz=MzI5MDU1NDk2MA==&amp;mid=2247487774&amp;idx=1&amp;sn=068fd94dd3b327473107fdb8c5391a9c&amp;chksm=ec1f4421db68cd3725aa3c4d75da6a960e25ed4489e5fa8b707e949b993d021ebcc24c6a3f82&amp;mpshare=1&amp;scene=23&amp;srcid=&amp;sharer_sharetime=1572572758458&amp;sharer_shareid=1d8a838b3dca08264ec18b21bbebc7f8#rd" target="_blank" rel="noopener">phpinfo信息利用</a></p>
<p>在很多比赛中phpinfo能够带来很多有用的信息,因此整理了一些.</p>
<a id="more"></a>
<h2 id="version"><a href="#version" class="headerlink" title="version"></a>version</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/1.png" alt="test"><br>第一个我们能由此获得php版本信息,php目前分为5和7两个大版本,针对不同版本payload也会不同.</p>
<h2 id="system"><a href="#system" class="headerlink" title="system"></a>system</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/2.png" alt="test"><br>获取system信息,可以依据系统版本寻找payload提权</p>
<h2 id="extension-dir"><a href="#extension-dir" class="headerlink" title="extension_dir"></a>extension_dir</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/3.png" alt="test"><br>PHP扩展的路径</p>
<h2 id="http-x-real-ip"><a href="#http-x-real-ip" class="headerlink" title="http_x_real_ip"></a>http_x_real_ip</h2><p>直接获取真实ip，无视代理、cdn。本地环境并没有发现这个参数，应该是ini配置问题。顺便说下HTTP_X_FORWARDED_FOR的区别，HTTP_X_FORWARDED_FOR会记录代理过程且可伪造.</p>
<h2 id="web根目录"><a href="#web根目录" class="headerlink" title="web根目录"></a>web根目录</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/4.png" alt="test"></p>
<h2 id="临时文件"><a href="#临时文件" class="headerlink" title="临时文件"></a>临时文件</h2><p>phpinfo-lfi getshell很老的一个洞了,大家可以了解一下<a href="https://www.kingkk.com/2018/07/phpinfo-with-LFI/" target="_blank" rel="noopener">phpinfo with LFI</a><br>不过这个漏洞利用条件十分苛刻</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">1.phpinfo</span><br><span class="line">2.开启了文件缓存</span><br><span class="line">3.没有gpc等函数限制</span><br><span class="line">4.开启lfi,有包含点</span><br></pre></td></tr></table></figure>
<h2 id="allow-url-include"><a href="#allow-url-include" class="headerlink" title="allow_url_include"></a>allow_url_include</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/5.png" alt="test"><br>利用一些协议时必要设置</p>
<h2 id="asp-tags"><a href="#asp-tags" class="headerlink" title="asp_tags"></a>asp_tags</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/6.png" alt="test"><br>php标签有四种格式，这个是asp风格的，默认不开启。可以上传.haccess/user.ini 绕过(php7移除)</p>
<h2 id="disable-functions"><a href="#disable-functions" class="headerlink" title="disable_functions"></a>disable_functions</h2><p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/7.png" alt="test"><br>禁用函数列表：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv</span><br></pre></td></tr></table></figure>
<h2 id="magic-quotes-gpc"><a href="#magic-quotes-gpc" class="headerlink" title="magic_quotes_gpc"></a>magic_quotes_gpc</h2><p>魔术引号，它是用来实现addslshes()和stripslashes()这两个功能的，对SQL注入进行防御。顺便提一嘴用了addslshes()除非是有编码问题要不然是不存在注入的。</p>
<p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/8.png" alt="test"></p>
<h2 id="open-basedir"><a href="#open-basedir" class="headerlink" title="open_basedir"></a>open_basedir</h2><p>将用户可操作的文件限制在某目录下</p>
<p><img src="//desperadoccy.github.io/2020/02/01/phpinfo/9.png" alt="test"></p>
<p>linux下绕过：<br><a href="https://www.leavesongs.com/PHP/php-bypass-open-basedir-list-directory.html" target="_blank" rel="noopener">PHP绕过open_basedir列目录的研究</a></p>
<h2 id="扩展"><a href="#扩展" class="headerlink" title="扩展"></a>扩展</h2><h3 id="imagick"><a href="#imagick" class="headerlink" title="imagick"></a>imagick</h3><p>php_imagick是一个可以供PHP调用ImageMagick功能的PHP扩展，使用这个扩展可以使PHP具备和ImageMagick相同的功能。<br>部分版本存在远程执行漏洞</p>
<h3 id="libxml"><a href="#libxml" class="headerlink" title="libxml"></a>libxml</h3><p>libxml 2.9以前的版本默认支持并开启了外部实体的引用，服务端解析用户提交的 xml 文件时未对 xml 文件引用的外部实体（含外部普通实体和外部参数实体）做合适的处理，会导致XXE。</p>
<h3 id="memcache"><a href="#memcache" class="headerlink" title="memcache"></a>memcache</h3><p><a href="http://blog.nsfocus.net/memcache-unauthorized-access-exploit/" target="_blank" rel="noopener">Memcache未授权访问漏洞利用及修复</a></p>
<h3 id="redis"><a href="#redis" class="headerlink" title="redis"></a>redis</h3><p>Redis 是一个高性能的key-value数据库。<br><a href="https://xz.aliyun.com/t/4051" target="_blank" rel="noopener">初识Redis未授权访问</a></p>
<h3 id="session"><a href="#session" class="headerlink" title="session"></a>session</h3><h3 id="xdebug"><a href="#xdebug" class="headerlink" title="xdebug"></a>xdebug</h3><h3 id="gopher"><a href="#gopher" class="headerlink" title="gopher"></a>gopher</h3><p><a href="https://blog.chaitin.cn/gopher-attack-surfaces/" target="_blank" rel="noopener">利用 Gopher 协议拓展攻击面</a></p>
<h3 id="fastcgi"><a href="#fastcgi" class="headerlink" title="fastcgi"></a>fastcgi</h3><p><a href="https://www.leavesongs.com/PENETRATION/fastcgi-and-php-fpm.html" target="_blank" rel="noopener">Fastcgi协议分析 &amp;&amp; PHP-FPM未授权访问漏洞 &amp;&amp; Exp编写</a></p>

      
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